A multiplayer web implementation of the popular turn-based strategy game Diplomacy.

"Luck plays no part in Diplomacy. Cunning and
cleverness, honesty and perfectly-timed betrayal are the tools needed to
outwit your fellow players. The most skillful negotiator will climb to
victory over the backs of both enemies and friends.

Objective

The objective of Diplomacy is to be the first to get 18 supply centers. For each supply center
you occupy you get a new unit, and you lose a unit whenever a supply center you own gets
occupied by someone else.

You can recognize the supply centers with the markers which are placed on them.

Units

Army

This unit can only move on land.

Fleet

This unit can only move in the sea, and in coastal territories. It
can also convoy armies across sea territories using the convoy move.

Moves

Hold

The unit will defend if its territory is attacked, but otherwise do nothing.

Move

The unit tries to move into(/attack) an adjacent territory.

Support hold, support move

Support is what Diplomacy is all about. As no one unit is stronger than another you need to
combine the strength of multiple units to attack other territories.(Try hovering your mouse over the more complex battles to get more explanation.)

Convoy

You can use fleets to carry army units across sea territories, this is called a convoy. You
can also string multiple convoys together to move an army unit large distances overseas in a single
turn.

Rules

In diplomacy no army or fleet is stronger than another, and a holding
unit will always beat a moving unit of equal support.

The only way to win a battle is by supporting a moving unit with another unit, using a yellow
support move order.

And support can be given to holding units, with a green support hold order.

If the number of support moves are greater than the number of support holds
the move will succeed, otherwise it will fail.

Also; if a unit is being attacked it has to defend itself by holding, and can't support another unit.